I didn’t get this note until today, Franky. If you search the forum, there’s been a lot said about grafting peaches. This year I must of made about 100 peach grafts and almost all of them took, but that hardly makes me an expert on the subject of spring grafting peaches. However, I don’t think it’s really all that complicated now that I know not to tightly wrap the wood when in storage. I use a simple splice graft and believe trees should be leafed out, growing vigorously and temps between 65-80 degrees F or so to get best success. I’m sure you can do the conversion to C.
I use electric tape to connect the scion to the trees shoot I’m grafting to and wrap the exposed scion wood with a type of parafilm called Buddy Tape. It is thinner and more stretchy than other types of parafilm tape.